Trinity Industries is hiring a Sr. Network Architect to support our enterprise network infrastructure. This role will provide strategic leadership across campus, data center, cloud and wide-area network domains; drive the adoption of modern network architectures including Zero Trust, SD-WAN, and cloud-native networking; and partner with security, cloud, and application teams to deliver resilient, scalable, and secure connectivity. Additionally, the Senior Network Architect will mentor engineers, develop technology roadmaps, and translate business requirements into actionable network designs that align with Trinity’s long-term objectives.
What you’ll do:
- Serve as the principal technical expert for all enterprise networking across Trinity Industries IT, including services delivered directly by Trinity and those provided by managed service and carrier partners
- Design and lead the implementation of scalable, highly available network architectures across campus, data center, WAN, and multi-cloud environments
- Lead the evaluation and adoption of Zero Trust Network Access (ZTNA)



principles, micro-segmentation, and identity-aware networking to advance Trinity’s security posture
- Own network security architecture, including next-generation firewalls (Palo Alto/Firepower/Fortigate), IDS/IPS, network access control (NAC), DNS security, and DDoS mitigation strategies
- Architect and govern SD-WAN strategy, including underlay/overlay design, traffic engineering, and integration with cloud on-ramps (Azure Virtual WAN, AWS Transit Gateway)
- Drive network automation and infrastructure-as-code (IaC) practices using tools such as Ansible, Terraform, Python, and CI/CD pipelines to reduce manual operations and increase deployment velocity
- Establish and maintain comprehensive network observability through monitoring, telemetry (NetFlow/sFlow/streaming telemetry), and AIOps tooling to enable proactive capacity planning and rapid incident response
- Develop and maintain network-c

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